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Thomas Welch — 1940 US Census Record
Model Tree available1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this Thomas Welch across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed), with identified parents Leonard & Nora — first a head (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Head
Born: Oregon
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Welch |
| Given Name | Thomas W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland (City) |
| 1935 Residence (County) | Multnomah |
| Additional Details | |
| Occupation | Addressograph |
| Industry | First Nat. Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1350 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Addressograph |
| Township / Ward | Portland City |
| Est. Birth Year | ~1910 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| James Welch | Son | — | 5 | ~1935 |
| Thomas Welch | Son | — | 7 | ~1933 |
| Thomas Welch | Head | — | 30 | ~1910 |
| Helen Welch | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Multnomah, Oregon
Son, age 10
Multnomah, Oregon · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Thomas W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Oregon |
| Mother's Birthplace | Oregon |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Multnomah, Oregon
Son, age 20
Multnomah, Oregon · implied b. ~1910 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Tom W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Oregon |
| Mother's Birthplace | Oregon |
| Occupation | Delivery |
| Industry | Grocery Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Multnomah-County, Oregon
Head, age 30
Multnomah-County, Oregon · implied b. ~1910 — 4 household members
| Surname | Welch |
| Given Name | Thomas W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland (City) |
| 1935 Residence (County) | Multnomah |
| Occupation | Addressograph |
| Industry | First Nat. Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1350 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Thomas Welch across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Leonard Welch (~0.92 confidence) and mother Nora Welch (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Leonard Welch
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Nora Welch
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Welch
Head · 1940 · age 30 · b. ~1910 · Oregon
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Multnomah-County, Oregon
Open full size
1940 US Federal Census — Multnomah-County, Oregon
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03391-00757)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles H. Powers | 54 | Head | Owner | Arkansas |
| 2 | Alta Mae Powers | 45 | Wife | Waitress | Michigan |
| 4 | John L. Mckenna | 59 | Head | Pipe And Tank | Oregon |
| 5 | Hugh F. Mckenna | 44 | Lodger | — | Oregon |
| 6 | Lawrence J. Connell | 58 | Head | Telegraph Manager | South Dakota |
| 7 | Margaret Connell | 51 | Wife | — | Oregon |
| 8 | Thomas W. Welch THIS PERSON | 30 | Head | Addressograph | Oregon |
| 9 | Helen V. Welch | 28 | Wife | — | California |
| 10 | Thomas Jr. Welch | 7 | Son | — | Oregon |
| 11 | James C. Welch | 5 | Son | — | Oregon |
| 12 | Joseph R. Coe | 36 | Head | Laborer | Iowa |
| 13 | Lena M. Coe | 33 | Wife | — | Kansas |
| 14 | Harold R. Coe | 14 | Son | — | Oregon |
| 15 | Atala Coe | 12 | Daughter | — | Oregon |
| 16 | Heino Peper | 58 | Head | Laborer | Nebraska |
| 17 | Metha Peper | 53 | Wife | — | Nebraska |
| 18 | Robert Peper | 14 | Son | Clerk | Oregon |
| 19 | Alfred Brinkhoff | 21 | Lodger | — | Kansas |
| 20 | Robert Rust | 76 | Head | — | Germany |
| 21 | James P. Reddy | 49 | Head | Steamfitter | New Jersey |
| 22 | Edith E. Reddy | 43 | Wife | — | Washington |
| 23 | Luther L. Webber | 38 | Head | Poultry Dresser | Missouri |
| 24 | Nancy C. Webber | 33 | Wife | Seamstress | Missouri |
| 25 | Mary Frances Rice | 81 | Head | — | Oregon |
| 26 | Adele J. Rice | 46 | Daughter | Payroll Clerk | Oregon |
| 27 | William C. Kelsey | 45 | Head | Surveyor | Indiana |
| 28 | Mary E. Kelsey | 43 | Wife | — | Oregon |
| 29 | Lon Blaine | 42 | Head | Agent | Indiana |
| 30 | Rosa M. Blaine | 34 | Wife | — | Washington |
| 31 | Gloria M. Coppelli | 15 | Daughter | — | Washington |
| 32 | Belvin Williams | 48 | Head | Waiter | Oklahoma |
| 33 | Norma Williams | 43 | Wife | Stenographer | Montana |
| 34 | William H. Williams | 13 | Son | — | Washington |
| 35 | Anna Tindula | 73 | Head | — | Germany |
| 36 | Joseph M. Landreth | 58 | Head | Painter | Oregon |
| 37 | Georgina Landreth | 53 | Wife | — | Kansas |
| 38 | Rodney Landreth | 12 | Son | — | Oregon |
| 39 | William Ecklund | 65 | Head | Carpenter | Minnesota |
| 40 | Anna W. Ecklund | 54 | Wife | — | Minnesota |
Related Census Records
Pedigree Summary
Thomas
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)